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Overall there were 24 pound coins designes released and around 13 pound coins that are rare and could be worth hanging on to, according to Change Checker.

It comes as the new bi-metallic 12-sided pound coin with new security features is introduced into circulation.

The design of the new pound coin features four emblems to represent each of the nations of the United Kingdom – the English rose, the leek for Wales, the Scottish thistle, and the shamrock for Northern Ireland – emerging from a single stem within a crown.

A stunning view of the Queen's coins

Commemorative coins released by The Royal Mint depict Queen Elizabeth II's reign since 1953.

Queen Elizabeth II has become Britain's longest reigning monarch as of September 9th 2015

Chief executive of The Royal Mint, Adam Lawrence, previously said: “The end of the round £1 is a significant chapter in The Royal Mint’s 1,000-year history, and I’m sure that many in Britain who have grown up with the familiar round coin will experience a certain amount of nostalgia when the last one comes off the presses.

“The Royal Mint is constantly looking to the future, however, so whilst the round £1 has served us well, it is time to turn our attention to the new £1 that in time will be used by millions of people in Britain and become equally well recognised across the world.”